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| author | Julian Wiedmann <jwi@linux.vnet.ibm.com> | 2017-01-10 17:10:34 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-10 21:08:29 -0500 |
| commit | dc5367bcc556e97555fc94a32cd1aadbebdff47e (patch) | |
| tree | 78778f65fe742ff199468fc3ac00e572513b89bc /net/tipc | |
| parent | 5d722b3024f6762addb8642ffddc9f275b5107ae (diff) | |
| download | linux-dc5367bcc556e97555fc94a32cd1aadbebdff47e.tar.gz linux-dc5367bcc556e97555fc94a32cd1aadbebdff47e.tar.bz2 linux-dc5367bcc556e97555fc94a32cd1aadbebdff47e.zip | |
net/af_iucv: don't use paged skbs for TX on HiperSockets
With commit e53743994e21
("af_iucv: use paged SKBs for big outbound messages"),
we transmit paged skbs for both of AF_IUCV's transport modes
(IUCV or HiperSockets).
The qeth driver for Layer 3 HiperSockets currently doesn't
support NETIF_F_SG, so these skbs would just be linearized again
by the stack.
Avoid that overhead by using paged skbs only for IUCV transport.
cc stable, since this also circumvents a significant skb leak when
sending large messages (where the skb then needs to be linearized).
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> # v4.8+
Fixes: e53743994e21 ("af_iucv: use paged SKBs for big outbound messages")
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
0 files changed, 0 insertions, 0 deletions